what need of NGR(neutral grounding registor)? What it works?

2 Answers  

---

What are the earthing required for commissionthe DG Set?

2 Answers   HSL,

---

What is harmonics. How does it get generated and means to arrest harmonics

8 Answers   Airtel,

---

What are stable systems?

0 Answers  

---

is dc transformer is possible ?

4 Answers   Jyona Power,

---

WHAT IS SEMICONDUCTOR? EXPLAIN DETAIL. FOR EXAMPLE TAKE A PENCIL.THE LEAD IS MADE UP OF GRAPHITE IT IS A CONDUCTOR.THE OUTER COVER IS MADE UP OF WOOD IT IS INSULATOR.PENCIL IS A SEMICODUCTOR MATERIAL.

5 Answers  

---

difference between converter and invertor

2 Answers  

---

IS HI-POT TEST DONE ON A TRANSFORMER - YES OR NO? WHY?

4 Answers  

---

what is the use of starter in tube light?and what it contains

12 Answers   L&T, RRB,

---

why write 500v on line tester (Test pen)

3 Answers  

---

What is ZCT? it operating principle and how is work with RCCB (residual current circuit breaker)?

4 Answers  

---

What is “pu” in electrical engineering?

0 Answers  

---